1 # Copyright (c) 2019 Cisco and/or its affiliates.
2 # Licensed under the Apache License, Version 2.0 (the "License");
3 # you may not use this file except in compliance with the License.
4 # You may obtain a copy of the License at:
6 # http://www.apache.org/licenses/LICENSE-2.0
8 # Unless required by applicable law or agreed to in writing, software
9 # distributed under the License is distributed on an "AS IS" BASIS,
10 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11 # See the License for the specific language governing permissions and
12 # limitations under the License.
14 """Stream profile for T-rex traffic generator.
17 - Two streams sent in directions 0 --> 1 and 1 --> 0 at the same time.
20 - Destination MAC address: 52:54:00:00:nf_id:01
21 - Source IP address range: 10.10.10.1 - 10.10.10.254
22 - Destination IP address range: 20.20.20.1
24 - Destination MAC address: 52:54:00:00:nf_id:02
25 - Source IP address range: 20.20.20.1 - 20.20.20.254
26 - Destination IP address range: 10.10.10.1
29 from trex.stl.api import *
30 from profile_trex_stateless_base_class import TrafficStreamsBaseClass
33 class TrafficStreams(TrafficStreamsBaseClass):
37 """Initialization and setting of streams' parameters."""
39 super(TrafficStreamsBaseClass, self).__init__()
41 # Service density parameters.
45 # MACs used in packet headers.
46 self.p1_dst_start_mac = '52:54:00:00:00:01'
47 self.p2_dst_start_mac = '52:54:00:00:00:02'
49 # IPs used in packet headers.
50 self.p1_src_start_ip = '10.10.10.1'
51 self.p1_src_end_ip = '10.10.10.254'
52 self.p1_dst_start_ip = '20.20.20.1'
54 self.p2_src_start_ip = '20.20.20.1'
55 self.p2_src_end_ip = '20.20.20.254'
56 self.p2_dst_start_ip = '10.10.10.1'
58 def define_packets(self):
59 """Defines the packets to be sent from the traffic generator.
61 Packet definition: | ETH | IP |
63 :returns: Packets to be sent from the traffic generator.
68 base_pkt_a = (Ether(dst=self.p1_dst_start_mac) /
69 IP(src=self.p1_src_start_ip,
70 dst=self.p1_dst_start_ip,
73 base_pkt_b = (Ether(dst=self.p2_dst_start_mac) /
74 IP(src=self.p2_src_start_ip,
75 dst=self.p2_dst_start_ip,
79 vm1 = STLScVmRaw([STLVmFlowVar(name="mac_dst",
81 max_value=self.nf_chains*self.nf_nodes,
82 size=1, step=self.nf_nodes, op="inc"),
83 STLVmWrFlowVar(fv_name="mac_dst", pkt_offset=4),
84 STLVmFlowVar(name="src",
85 min_value=self.p1_src_start_ip,
86 max_value=self.p1_src_end_ip,
88 STLVmWrFlowVar(fv_name="src", pkt_offset="IP.src"),
89 STLVmFixIpv4(offset="IP")])
91 vm2 = STLScVmRaw([STLVmFlowVar(name="mac_dst",
92 min_value=self.nf_nodes,
93 max_value=self.nf_chains*self.nf_nodes,
94 size=1, step=self.nf_nodes, op="inc"),
95 STLVmWrFlowVar(fv_name="mac_dst", pkt_offset=4),
96 STLVmFlowVar(name="src",
97 min_value=self.p2_src_start_ip,
98 max_value=self.p2_src_end_ip,
100 STLVmWrFlowVar(fv_name="src", pkt_offset="IP.src"),
101 STLVmFixIpv4(offset="IP")])
103 return base_pkt_a, base_pkt_b, vm1, vm2
107 """Register this traffic profile to T-rex.
109 Do not change this function.
111 :return: Traffic streams.
114 return TrafficStreams()